Modular mask



FIG. 1 is a top perspective view of the modular mask showing our new design;

FIG. 2 is a bottom perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a back view thereof;

FIG. 5 is a left side view thereof; and,

FIG. 6 is a right view thereof. 

We claim the ornamental design for the modular mask, as shown and described. 